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None msc model for positrons 

Forum: Physics List
Date: 06 Oct, 2015
From: Simone <Simone>

Hello,

my simulation gets stucked in a certain event due to a positron not moving in a volume while performing countless steps (see attached image).

I am using G4EmStandardPhysics_option4, geant4.10.1 latest patch, and the process associated with msc for positrons is WentzelVIUni:

msc:   for e+    SubType= 10
      RangeFactor= 0.02, stepLimitType: 3, latDisplacement: 1, skin= 1, geomFactor= 2.5
      ===== EM models for the G4Region  DefaultRegionForTheWorld ======
            UrbanMsc :  Emin=        0 eV    Emax=      100 MeV  Table with 120 bins Emin=    100 eV    Emax=    100 MeV
        WentzelVIUni :  Emin=      100 MeV   Emax=       10 TeV  Table with 100 bins Emin=    100 MeV   Emax=     10 TeV

Does someone understand what is happening and how to solve this?

Thanks,

Simone

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2015/10/06/06.08-3820-output.png

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1 Idea: Re: msc model for positrons   (Vladimir Ivanchenko - 06 Oct, 2015)
(_ News: Re: msc model for positrons   (Simone - 06 Oct, 2015)
(_ Idea: Re: msc model for positrons   (Vladimir Ivanchenko - 06 Oct, 2015)
(_ None: Re: msc model for positrons   (Simone - 07 Oct, 2015)
(_ More: Re: msc model for positrons   (Simone - 07 Oct, 2015)
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